Photos

Financial investor Warren Buffett looks on during an announcement ceremony at Northwestern University in Evanston, Illinois, in this file photo taken January 28, 2015. Buffett, the billionaire chief executive officer and chairman of Berkshire Hathaway, told CNBC on March 2, 2015 that Berkshire executives Ajit Jain and Greg Abel were not angling for the top Berkshire job. REUTERS/Jim Young/Files (UNITED STATES - Tags: BUSINESS EDUCATION SOCIETY HEADSHOT)